EP 2154697 A3 20141119 - Choke device for frequency converter
Title (en)
Choke device for frequency converter
Title (de)
Drosselvorrichtung für einen Frequenzwandler
Title (fr)
Dispositif de support pour convertisseur de fréquences
Publication
Application
Priority
FI 20085770 A 20080813
Abstract (en)
[origin: EP2154697A2] A choke device for a frequency converter, comprising three windings composed of conductors wound around three substantially parallel axes (A, B, C), respectively, the windings being located triangularly with respect to each other in such a manner that, when the choke device is viewed in the longitudinal direction of said winding axes (A, B, C), the winding axes are located at the vertices of the triangle, the choke device further comprising an envelope (1) surrounding the windings, a first end (3A) thereof being provided with at least one opening (20) for receiving cooling medium to the inside of the envelope, and a second end (3B) being provided with at least one opening for discharging the cooling medium from the envelope, and an envelope axis (D) between said first and second ends being substantially parallel with the winding axes (A, B, C).
IPC 8 full level
H01F 37/00 (2006.01); H01F 27/02 (2006.01)
CPC (source: EP FI US)
H01F 27/025 (2013.01 - EP US); H01F 27/08 (2013.01 - FI); H01F 37/00 (2013.01 - EP US); H01F 27/085 (2013.01 - EP US); H01F 30/12 (2013.01 - EP US)
Citation (search report)
- [YA] DE 391087 C 19240304 - D ORGANISATION ECONOMIQUE SA B
- [Y] US 2008094159 A1 20080424 - SODO NICKLAS [FI]
- [A] GB 1149567 A 19690423 - GEN ELECTRIC & ENGLISH ELECT [GB]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
EP 2154697 A2 20100217; EP 2154697 A3 20141119; CN 101651032 A 20100217; CN 101651032 B 20111109; FI 122043 B 20110729; FI 20085770 A0 20080813; FI 20085770 A 20100214; US 2010039201 A1 20100218; US 7969264 B2 20110628
DOCDB simple family (application)
EP 09166530 A 20090728; CN 200910165642 A 20090812; FI 20085770 A 20080813; US 50800409 A 20090723